You could certainly make it work when the house is in “away” mode. I don’t know how SmartThings would know that “away” was triggered manually. I suppose as part of manually triggering “away”, a virtual switch could be tripped as well. Do you use “away” mode at other times or is it only triggered by you manually?
Right now I am using motion sensor to trigger away mode. But I guess I can remove that and just manually trigger away mode with a phrase. I guess my next question would be, is there a way to put a delay to activating the motion sensor after I say the phrase? Because the motion sensor might get triggered immediately since I am still in the vicinity.
It’s not always easy to do everything you want with SmartThings but almost anything is possible. If you are going to add that layer of complexity I would recommend you start looking into CORE. I have not used it yet but I understand that once you get passed the learning curve you can create very powerful sets of conditions.